Safety helmet

Abstract

A crash helmet such as for use by motorcylists having an inner shell of shock-absorbing material and an outer shell and visor which are constructed as a single integral piece of transparent hard plastic material which fittingly surrounds the greater part of the inner shell. The outer and inner shells are connected to hinges transverse to the side portion of the helmet.

I claim: 
     
       1. A motorcyclist's crash helmet comprising an inner shell of shock-absorbing material, a protective outer shell made of a hard plastic material, said outer shell fittingly surrounding the greater part of the inner shell in the lowered position and having a visor portion wherein said outer shell and said visor are formed of a single piece of transparent plastic, said outer shell being connected to said inner shell by at least one hinge transverse to the side portion of the helmet. 
     
     
       2. Safety helmet according to claim 1, provided with two hinges, characterized in that each of said hinges consists of a sleeve extending through the outer shell and being connected to a strip extending through the inner shell, the end of said strip opposite to the sleeve being provided with a fastening member for a chin-strap. 
     
     
       3. Safety helmet according to claim 1 or 2, characterized in that the outer surface of the inner shell which consists of foam material is finished with nylon flakes. 
     
     
       4. Safety helmet according to claim 3, characterized in that the inner surface of the inner shell is provided with recesses in which size adjusting pieces are fastened.